| 主权项 |
1. An adjustable support apparatus comprising:
a base that includes spaced apart horizontal support members that are spaced apart at a predetermined distance by a third horizontal support member, and a foot plate that is connected to the third horizontal support member and disposed between the spaced apart support members; a first upright support member of a first predetermined height that is supported at one end thereof on one of the horizontal support members, an other end of the first upright support member has a first support that is generally parallel to the one of the horizontal support members, the first upright support member includes a first opening in which a first end of a first post is slidably supported, a second end of the first post is pivotally connected to the first support, and a first height of the first post is adjustable via a first adjustment mechanism with respect to the first upright support member; a second upright support member of a second predetermined height that is less than the first predetermined height, and is supported at one end thereof on a second one of the horizontal support members, an other end of the second upright support member has a second support that is generally parallel to the second one of the horizontal support members, the second upright support member includes a second opening in which a first end of a second post is slidably supported, a second end of the second post is pivotally connected to the second support, and a second height of the second post is adjustable via a second adjustment mechanism with respect to the second upright support member; and a third upright support member positioned adjacent to the second upright support member, wherein the third upright support member includes a third opening in which a first end of a third post is slidably supported, and a second end of the third post includes a pivoting connection to a support surface. |
